It is easy to miss, and perhaps that is part of what makes it worth noticing. The raised oval platform, measuring roughly 48 metres along its longer axis and 39 metres across, is not immediately dramatic. What defines it is a low scarp, less than half a metre high, topped with a drystone wall so closely matched to the surrounding field boundaries that the enclosure can appear, at first glance, simply to be an unusually shaped field.

Ringforts, known in Irish as raths when they are earthwork rather than stone constructions, were the most common form of rural settlement in early medieval Ireland, typically serving as enclosed farmsteads for a single family or small community. At Spring Garden, the original earthwork survives in fragmentary but legible form. At the base of the scarp lie the faint remains of a fosse, a defensive ditch roughly four metres wide, and along the northern arc of the site an outer bank, also about four metres wide, survives at around 0.4 metres in internal height. This outer bank gradually merges into a later field wall running northwest to southeast, a detail that quietly illustrates how agricultural activity over subsequent centuries has absorbed and partially erased the earlier landscape. The original entrance to the enclosure can no longer be identified, which is not unusual given the degree to which the surrounding farmland has been continuously reworked.